databrick多次将python参数传递到循环sql脚本中

u4dcyp6a 于 2021-07-29 发布在 Java

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我试图创建一个python列表，其中包含多个变量，这些变量将用作for循环中的值，for循环通过创建多个表的sql查询，但是我似乎找不到一个示例来显示多次使用的参数。

list = ["a","b","c"]
for x in list:
sql = ''' 
create volatile table test_{} as (
select * from database.tablename_{}
) with data on commit preserve rows;

create volatile table test2_{} as (
select * from database.tablename2_{}
) with data on commit preserve rows;
'''
display(sql)

sql python databricks

来源：https://stackoverflow.com/questions/63127632/databricks-pass-python-parameters-into-a-looped-sql-script-multiple-times

1条答案

按热度按时间

7z5jn7bk1#

您可以使用所谓的f字符串（从python 3.6开始），将同一变量插入多个位置：

list = ["a","b","c"]
for x in list:
    sql = f'''
create volatile table test_{x} as (
select * from database.tablename_{x}
) with data on commit preserve rows;

create volatile table test2_{x} as (
select * from database.tablename2_{x}
) with data on commit preserve rows;
'''
    print(sql)

或者你可以用 format 带编号占位符

list = ["a","b","c"]
for x in list:
    sql = '''
create volatile table test_{0} as (
select * from database.tablename_{0}
) with data on commit preserve rows;

create volatile table test2_{0} as (
select * from database.tablename2_{0}
) with data on commit preserve rows;
'''.format(x)
    print(sql)

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databrick多次将python参数传递到循环sql脚本中

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